Composite metal article and process of making the same



Oct. 6, 1931. R. HERVIG ET Al. 1,826,543

i519? o0; 'lieven 02%,- y

Y i alflatupper in'connectionyyith theblanks l Y envelope' Willal'WaysY dependsomewhaton l and lower die shown in l;

Fig'f illustrates asimilar Valv'eftllt' md5. beproduced by using Ita 'comme upper. die

with the blanks and Alower dieshown in Fig, 1' a Fig: f7v illusti"a'tes'ja head blankinfone form that maybe producedjby forging, and" 1 Fig, 8 nis afragmentary sectional yic'wff a i modifedfrm-o, l

p. ierfidifef is; use-? the' linitiar he etall of the; stern being of* die j tlifefrfpressureftliefparts assunietheforni 'n Fig i3 inwlichrsubstantiallyr; the A'cn- V s"Y indicated' at' 19," 4'and Vthey head "inore adjacent tothe extreme; end,l as atj 2 1, '1 and' at n about' lits Y un'cture .with the' bottom ifal'yf 'lirfiedffiie f "parts y'are @shown 1 further. st

23' thereby .assuminga gradtheir@ @Verfall-Length" as@ it is no@ l neceslsarythat the' head blank be incontact yvith tlir Fig; l, but it mayfbeheld in-'spacedlrelaf 'fifi-slank'metipresnengthe a Y @dienten-aging n the gamin @inservice-j ntiniatefcontactf i The enlarge-r llhaving' ajdiecavity 'consisting-cf a,

head portionfll anda stem portion 12 adaptrff f ed to Cooperate :with av selectedfupper dief "A. stern rod y13 V:which 'may' be al merey 'length y of round bar stockfor'may be ainifshed stein, g a y u I l Y Y i y "gtion,thefinisliedpfoducta pocket 14," extending nietalof'lessfdiairetelt'than ad blank' 15a-'Will Hatten it, 'Thev configura;

' jinc'luding'the'ey ly "diretions-vf'fithf*strey Y Y "vere seriice Without? loosening; and Without VIV'str'2 1JjiI1`-i-11`g. either the stent. ifn'etali or -thefhead metal by 'localiza'tion. In otherfWords,/iso "far j asv-the trausmi'ssifm g03E-l force is leonf eerned thet'wo parte vare effeet, integral. `ButiWhen*'there'lis-no i the contacting surface s-,av

ulder atl-fthe end ofthe e y enlargement' J aty ythe.-

The eactforination `of thestern Withinthc ing operation; -Theconfigurationgniay thus v be' yaried, buftiso: long as thefstem is permit# ted toexp'a'ndfin the initialforgingfopera- `ll "resent: ostern soun'dis"v so' poor as tothe-practica yeL bie-using@ head, i but the saving inycostrwillvnore: thanV going disclosure"includesspecitid description vand`li llustliiatio'11,-- it is" not intenddfthat'anyalfuni'onf between- 'e transnnssionggof' @adi stniking that would permit the substance of the in- 'y vention to be appropriated Without infr/.ing-

' ment.

The valve as an article of manufacture is Vclaimed in vmy copending application iiled of even date herewith. i y Y We claim as our invention: l.

1. The process of making composite metal 7 articles which includes forming a globular blank of head metal'with a pocket therein,

inserting one end ofy a rod into the pocket and radially expanding the inserted portionr` of the rodand the blank to form a head.

2. The process of making composite metal articles ywhich includes forming a globular blankof head` metal With* a pocket therein, inserting one end ofa rod into the pocket and radially expanding the inserted portion of the rod and the blank toform a head by forcing them into'. a die having a flattened.y Y mold cavity.

3. The proces-s of making composite metal articles Which includes forging a ball shaped blank, penetrating the blank radially, insertying one end of a rod into the blank and hot forging vthe Lassembly to distort the rod and form the blank into a head interlocked With the distortedportion of the rod. n r

4l. 'The process of makingcomposite metal articles which includes forging a ball shaped blank,surfacing the blank by grinding, penetrating the blank radially, inserting one end of a rod into the blank and-hot forging the assembly to distort' the vrod and form the blank into a headinterlocked with the distorted portion ofthe rod. f

5. The 'proce'ss of making metal articles Which includes forming a ball shaped blank Y forging the assembly tovdistort'tlie rod and form theblank into ahead inte'rlocked With of head metal, surfacing the blank by grinding, .forming a radial. pocket in the blank,

inserting one end of a rodintothe blank and the distorted `portion of the rod.

' 6.k A composite metal article of the class kdescribed yconsisting of a stem having a distorted portion adjacent to one end and a head interlocked with said distorted portion, the interlocked surfaces being in the conditionvof having been formed by inserting one en d of the stem into ay pocket in a yglobular v blank and hot forging the blankand a portion of the stem to forma head. l

p 7 .v A composite metal article of the class Y. p described consisting of a stem having a knob adjacent to one endl and a head interlocked rwith said knob in the. condition of having been formedk byv insertingone end' of a rod into a radial hole in a .spherical blank and hot forging the assembly to form a head on the, rod. n y f RICHARD IHERVIG. JARDINE.

CERTIFICATE or CORRECTION.

Patent No. 1,826,543. Granted October 6, 1931, to

RICHARD HERVIG ET AL.

It is hereby certified that the above numbered patent was erroneously issued to "Rich Tool Company, of Chicago, Illinois, a corporation of Illinois", whereas said patent should have been issued to Rich Tool Company, of Portland, Maine, a corporation of Maine, as assignee by mesne assignments of the entire interest in said invention, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 16th day of February, A. D. 1932.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

